Improvement in brick-kilns



H. MGOUBI Brick-Kiln.

No. 219,492. Patented Sept. 9,1879.

WITNESSES: INVENTDR:

, ATTORNEYS.

N. PETKRS PHOTO LITHDGRAPKER. WASHINGTDN, D C

UNITEDSTATES PATENT OFFICE.

HENRY MCOUE, OF TEEREHAUTE, INDIANA.

IMPROVEMENT IN BRICK-KILNS.

Specification forming part of, Letters Patent No. 219,492, datedSeptember 9, 1879; application filed February 14, 1879.

To all whom it may concern:

Be it known that I, HENRY MoCUE, of Terre Haute, in the county of Vigoand State of Indiana, have invented a new and useful Improvement inBrick-Kilns, of which the following is a specification. I

Figure 1 is a top view of myimproved kiln, one of the furnaces beingshown in horizontal section. Fig. 2 is a detail vertical section takenthrough the line y 3 Fig. 3. Fig. 3 is a detail vertical section takenthrough the line a :12, Fig. 1.

Similar letters of reference indicate corresponding parts.

The object of this invention is to furnish an improved kiln for burningbrick which shall be so constructed as to prevent the shrivel ing,cracking, breaking, or glazing of eye or jet bricks, to form less softor clinker brick, to burn the brick to a more uniform size and colorthroughout the kiln, to use less fuel, to

produce a better combustion, to allow the heat to be directed toanydesired part of the kiln, and to require less labor. in working thekiln.

The invention consists in the furnace provided with the bridge-wallhaving openings formed through it, the fire-grate, the inner arch orcover, the four dampers, and the airinlet openings, to adapt the saidfurnace to be applied to the outer walls or clamps of a brick-kiln, ashereinafter fully described.

A represents the outer walls of the kiln, technical] y called clamps,and in theirlower parts are formed the holes or eyes a, through whichthe products of combustion from the furnaces B enter the said kiln. Thefurnaces B are divided by a bridge-wall, G, into two compartments-asmaller rear compartment and a larger forward compartment orfire-chamber. D are the-firegrates, which extend from the front of thefurnaces B back to the bridge-wall O, and are made detachable, so thatthey may be moved from one furnace to another, if required.

The lirechambers of the furnaces are provided with covers or arches E,extending from side wallto side wall, and from the top of thebridge-wall nearly to the front wall of the said furnaces.

In the bridge-wall G are formed two openopenings in the side walls ofthe furnaces 13.,

The dampers F Gr may be made of fire-brick or cast-iron, and aredetachable, so that they may be moved from one furnace or kiln toanother, as required.

In the side walls of the furnace B, a little in front of the upperdampers, F, are formed ventilating-holes b, which may be closed byslides or other convenient means when not required for use.

In first firing the kiln, the upper dampers. F, are opened, which givesa direct draft into the kiln, so as to establish a draft through it.When the water has been expelled and the kiln has become warm, the upperdampers, F, are closed, as the kiln will then be able to force its owndraft. When the upper dampers, F, are closed, the ventilating-holes bmay be opened to admit air directly into the firechamber, to mingle withthe smoke and the gaseous products of combustion and cause them to beburned.

When it is desired to concentrate the heat in the middle part of thekiln, the upper dampers, F, are opened, and the plugs are removedfrornahe sight-holes, which are situated in the kiln-walls just abovethe tops of the furnaces, so that the air entering through the saidsightholes may force the heat to the center of the kiln.

The lower dampers, G, are designed for use for shifting the heat fromone eye a to the other-as, for instance, when one eye gets too hot, andthere is danger of melting, the lower damper, G, communicating with thateye, is closed until the said eye has cooled down enough to allow theheat to be again admitted; or, should one eye become sufficientlyburned, its damper Gr may be closed and the heat allowed to pass throughthe other eye.

With this construction the heat can be readily controlled and turnedfrom one point to another, as may be required. The dampers G may also beclosed when putting in fuel, so as to prevent cold air. from enteringthe kiln through the furnace, the said dampers being again opened assoon as the furnace-doors are closed.

I am aware that it is not new to provide a fnrnacewith an air-spaceabove the tire-box, and connect the said space with front air-fines foradmitting fresh air, and with rear flnes for conducting the same tofines connecting the furnace with the kiln, so as to produce theinter-mixture and complete combustion of the fire gases on theirentrance to the kiln, the said connecting-fines being provided withdampers for controlling the admission of the products of combustion tothe kiln; but

What I claim, and desire to secure by Letters Patent, is

The furnace 13, divided into two compartments by the bridge-Wall G,having openings 0, closed by dampers F, and provided with the grate D,the arch or cover E, the air-inlet openings I), and dampers G, forclosing the holes or eyes a inthe walls of the kiln A, in combinationwith the walls A of a brick-kiln, substantially as shown and described,and for the purpose set forth.

HENRY MOGUE.

Witnesses:

JOHN DAVIS, JOHN T. HARRIS.

